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Site code PPL from Riese (2004); cited by Corpus of Maya Hieroglyphic Inscriptions (2016). Alternative site code PSL from Riese (2004).
Alternative name ‘Pusil’ according to Ian Graham (Freidel 1986: 9).
Position after GPS coordinates in Johnson (2012). The Location 16Q CU420005 recorded by Garza Tarazona & Kurjack (1980) refers to another ‘Popola’ close to Dzitas.
Corpus of Maya Hieroglyphic Inscriptions (CMHI)
2016 Sites Codes (updated Feb 2016). https://www.peabody.harvard.edu/cmhi/CMHI_SiteCodes_FINAL_2016.pdf (by Barbara Fash). (accessed October 24, 2017).
Freidel, David A.
1986 Yaxuna Archaeological Survey – A Report of the 1986 Field Season. http://www.famsi.org/research/freidel/1986Freidel.pdf. (accessed November 22, 2017).
Johnson, Scott A. J.
2012 Late and Terminal Classic Power Shifts in Yucatan: The View from Popola. Ph.D. Dissertation, Department of Anthropology, Tulane University.